Film-splicer



' F. c. GRISWOLD.

FILM SPLICEH. APPLICATION FILED DEc. 21. 1917.

2 sIIIETs-SIIEET 1.

I non u o n nono n u n INVENTOR 16' www www BY W ATTORNEYS u F. C.GRISWOLI).

FILM SELICER. APPLICATION FILED DEc.27, 1917.

Patented oet. 26,1920..

2 sIIEETs-sI-IEET'z.

INV

BY l v 4a ATTORNEYS film clamp and the presser FBEDERCK C. GRISWLD, 0F,PORT JEFFERSON,

NEW YORK, 'Ass'IeNoa 1ro. omvn n.

FILM-spuma.

specification of Letters Patent. s

1,356,7611 f x Appiiluio'nmea neoember'271917. seria; No. 209,973.- 1 ToaZZ whomftzna/J conce/m: i labinit'the center of thebase a lug`7 Be 1tVknown that I, FREDERICK C. GRIS- uprises therefrom, in which lu isLseated a worin, a citizenpf the VUnited States, and transversely.arranged doublel s ear` block'S resldent of Port'deerson, injthe countyof having a flat yhorizontal to face. Between Suffolk and State of :New'Yor`k have in. fthe uprising lugs-13 and 4, hinge a presser ventednew'and useful Impro'vement in -bar ,9 having a yieldingflat face 10 ar-'Film-Splicers, of which he ollowing is a rangedtolbe brought intoengagementwith s pecication.

The object of my i vention is tolprvide certain 'improvements in flmsplicing` ina-- chin'es whereby the ,film .sections may easily andrapidly prepared for splicing. an spliced without .shifting the filmsections lengthwise, meansl being employedy to so trim the ends of theilmsections as lapping matchedportion's. Y

A 'practical embodiment of my iinvention is represented in theaccompanying drawings, in -which-S ligure lis a plan view of the machinewith oneofthe film clampslowered-and the other one raised; the presserbar also being raised, Y-

Fi 2 is a section taken in the plane of the `line I--II of Figilj, 'l

Fig. is aisectlonfta'kenz in the plane of the line II--III ofFig. 1,with the farther barv lowered,

. v Fig. 4 is a View in' perspective. with the A sections,

raised parts in the positions shown the projecting endvof one of v"thefilm "sections hasjbeenvtrimmed bythe knife .on the film clamp whchpisshown raised,

. Fig. 5 isan enlarged longitudinal section through the mac 'etaken invthe `plane ofthe lmeYe-,ViofFig 1, with both `fr lnlfclamps and 'the,presser ba loweredY for splicing the overlapping endsof the two filmFig. 6 isa transverse section taken in the plane of the line VIe-'VI ofFig. 5, with the .upper jaw of; -the farther clamp member andthe lowerjaw lowered, Fig. -7`shows the trimmed-'endof 011e film section inbottom plan with the cement applied thereto and the trimmed end of the.'

adjacent film section in top emulsion removed therefrom,

Fig. 8'is a top plan view of both film sections after the overlappingends have been i The base ofithe machine is denoted by 1.

Lugs 2, 3, 4 and 5 u from'the base rlse back thereof,.w ich lugs-formsupports for a bar 6,. r

plan' with the to leave overlatch is suchI (on the freeend ofthe'presser'bar to forcelit into snug block 8. In

in Fig. 1, Aafter v one on each side vofthe presser bar 9, bef'vertical' '.the base 1 in position and ofthe presser b ar 9 wh `liase 1at the back.

their movement in that and lower' jaws of the be flushwith the top vfaceof the presseikbarisA swung wardly.

A' latch bar 11 is hinged yto the front of the' base 1 in position toengage the free end en the presser bar The Ashape of the hook 12 of theas to exert a cam-like action forwardly and down is lowered.

engagement with the present instance, this latch bar 11`is mounted -on abar 13 supportedin lugs 14, 15 ,and spacing collars.13* are interposedbetweenthelatch bar and lugs. This latch bar preferably has a slightyielding movement with the barf 1 3, to permit the latch bar to givesuficiently to adapt it to films of varyingthicknesses'.

An adjustable stop 1 6 at the back -ofl the base is locatediin positionto limit the up- Award and rearward movement of thepresser f' bar.

Two film clamps .are hinged on the bar 6, tween the lugs 2, 3, andv 4,5, respectively.

Adjustable 'stops 17, 18, are provide'v ,on to support the clampsintheir-lowe'red. position with the top faces oftheir lower'- jaws 19and 20 flush with. the top face of -theshear block- 8; Adjustable stops21, 22, are

thereof-in position to en- 23, 24, respectively, of

gage the upper jaws the'iilm clamps upwardly and rearwardly to the limitvof lrection, The relative positions of the adjustable stops 21, 22,1and the adjustable stop 16 are such that the meeting faces of the uppertwo .film clamps will the yielding face 10 of the bar 9 when the clampsand presser bar are thrown back.

JThe 'lower 'jaws 19 and 2O ofthe film clamps are provided withsuitablehandles presser Patented oct. 2e, 1920.

shear. block f- S when the f located on the when the clamps are swungtheshear 25, 26, respectively, and thel upper 'jaws 23, 'l

v24,l ofthe clamps areprovided with suitable handles 27, 28.

Theupper jaws 23, 24, of the two'clamps are held either openedI orclosed by springs 2 9, 30, which engage cam surfaces 31, 32,respectively, of said upper jaws. These springs 29, 30, are secured Itothe bottom faces of the lower jaws 19 and 2.0. The lower jaw 19l ofonefilm clamp is provided with a shearjblade. 33 which isl arranged toAcoact with the adjacent face of l mp is provided' xwith a shear blade34arra'nged to coactfwth the vopposite face of the shear block` 8for-trimming off'the rough projecting ends of adja cent ilmsecti'o'ns tobe united as will hereinafter 'more .'fullyl appear. f

The low the film er jaws -19l and,20'o clamps "are channeled along theiru p -faces to provide guides' for th film seiedns ed with upandthe'lbwer'jaws are provi rising reglstering pins 35,' 3 6, for engagingthe perforations along-that side of theiilm sections.

jaws 23, 24

The upperl` ,'-of theclampshave holes 37, 88, fori receivingtheseregistering 'pins'when the"jaws are closed In splicing film' sectionstogether, several cycles of operations may be employed; For instance,presuming the film sections to be splicedwth the emulsion side'yuppermost,- the c cle of operations may be as follows: *One lm'clamp,foninstance .the film clamp- 19, 23,: may be swung back out of the wayas also the`p'resser bar- 9. The upper j avv`24 of\ l the otherfilm clof the lower jaw with the end tovbe trimmed projecting beyond Tthe shearblock 8y suffici'ently to .bring the crossline of-one of.

e picturedivi'sions over the top face'of the.-

shear block. The film section will be held -in this positionlby the-registering pin' 3Q.-`

The upperV jaw -24 is thencl'osedQ. The other `cl'an'1p19, 23,1is thenswung'jdownwardlythu's causing itsjcu'tter blade-33t()- portion ofthefilm whi p 1 9, 23; isthen raisedj projectingbeyond thel shear block..8` and with the cro visions locat block. This film section will be heldthe registering pinf35. The ipper jaw 23 is;

` then'closed. The `film vclamp 20,. -24;,-i s .tl 1en lowered,catlsing' its cutter blade-34 to coact with the shear block"8,`to trim offthe por- V tion 'of thel l projectin' beyond the shear block. -`lhiswill leve tige ends ofthe two' byl the cam latch 1 shear off the sslineofone of the picture di-l end ont bar 9. Y

/Inthev condition being described, with the film sections placed in themachine with the emulsion on top,'the emulsion on the pro -.70jectingfend of the film section held the clamp 19, 23, which is. restingupon" the shearblock 8, may be removed in any desired manner, as,forinstance, by the treatment with a chemical which will remove the ,76emulsion or by a `sc rzatperor by an abrasive implement, such as a blockofedampened felt. The cement may then be applied either `to the exposed#surface of the raised film' section or to the expo he filmclal'np 20,-24

loweredv film section. may then be lowered, bringing they exposed.portion of this filmsection onto'the exposed portion of the filmsection held by the llowered .clamp'19,'23. i Jlie presser bar T9.' maythen be swung downwardly and from' its free end engaged 1 tov force theyielding face' 1 ofthe presser bar snuglyA into en gagementI withthe-overlapped 'ends of the/90 two filInsections. The parts may bejmaintained in this position s Hicientlylong to ,permit the Iendsfto befirmly united when the presser bar andthe upper jaws of the two filmclamp permit the removal of the united film sections. f The ,function ofthe yielding face 10 of the presser, bar is to insure an even pressure,

long the overlapping ends ofthe film sec- 'ons even should theyvary inthickness. -While I have described the operation of the machine inconnection with uniting. the severed ends of two film sections, it i'sobs viousthat it might as well begemployed for cutting'out a portion ofafiln and joining i -the remaining portions or it mi htlb used for'joining the ends -of two fdi erent films, 'gt-will seeny from'the abovedescription .that 'thefiln'i sections arecontrolled'f'abso- '1'10 thebeginning of the operations otheyi'eldng face 10 of the presser to Ishift.

o f thefihnsections 'can bedoneveryxrapidly, 115

ItWll have' bee. lapped, thus v'obi'riatil'ig the necessity of shift-120 ingl film s'ctions iunited." v It will alsohe seenthat one or bothof thel 'cari'yingclamps may be swn into4 and out of engagementwith theshear b y as "\desired, thus' permitting readyprepara' ,'l tion'ofthesectionsfor splicing- 'withoutlE the necessity of rolling back one or4both j) ends =for treatment. v Itwill also be seenthat after 4theends'ere4 1 30 also be seen that air'ter the two ends sed surface Yof'the 80 s may be thrown back to` 95 n trimmed'they 'are-alreadyoverendwise fbeff p 1'e they aretrimmed, the projecting filmsections/are supported by a flat surface with theJ yielding face of the'presser bar' when the clamps are raised.

It will be noted that the shear blades` are rather than by a separateoperative device, the shear block serving both to coact with the shearblades and also with the presser bar in the cycle of' o4 erations. l v

hat I claim is:+ l

1. In a. film splicer, means for separately clamping two film sections,registered with. respect to each other, means for so trimming the endsof said sections -as pingI portions without endwise' movement of thesections, and meansf forl pressing the overlapping portions of the filmsections tofgether. y

2. In a film splicer, a double shear blockand a pairof fihn clampshaving cutting edges arranged tocoact with the shear block for trimmingthe ends of the film sections.

3. In a-film splicer, a double shear block and a pair of lm clampshaving cutting edges arranged to alternately coact with the shear blockfor so film sections as to leave overlappingportions` in the plane ofthe shear block.

4. In a film splicer, a double yshear block, a pair I arrangedtoalternately coact with theshear block forA so trimming the ends oftvwfilrn sections as to leave'overlapping portions in the plane of theshear block. x

5. In a fum Splice?, a. double shear block,

a film clamp on each -side of the shear block,

each clamp having a cutting edge for trimming the end of the filmsection held by the other filml clamp, lthereby Vleaving overlapportionsof both*l other film'y clamp,

to leave overla'ptrimming the ends off two v of film clamps havingcutting edges v thetop of the shear p block# aId a presserL 'bararranged to pressthe overlapping ends` together on Ithe shear 6. In afilmsplicer, y a film clamp on each side of the Shear block, each clamphaving al cutting edge for trimming the end of the film sectionsh'eld bythe thereby leaving overla ping ends' in the plane of the shear blocanda presser bar'for pressing the overlapping ends together on the shearblock.

7 .'In a film splicer, a double shear block, swinging'film clamps-0nopposite Asides of the block having c tting edges for trimming the endsof the clamps, and a swinging presser bar for pressing the overlappingends together on the shear block.

8. In a lml splicer, a double shear block,

swinging lm clamps on opposite sidesbf the m sections held by the".

block having cutting edg'es for trimming v the ends of the film-sectionsheld by the clamps, a swinging presser bar for pressing the overlappingends together on the shear block, and stops movements of the clamps andpresser bar.

9. In a lm splicer, v having a fiat top, a pair of4 film clamps locatedon opposite sides of the block, .each

for limiting theswingmg adouble shear block f comprising upper and lowerswinging Jaws,

means for registering the top ofgthe `shear block and maintaining it insuchregl ter and means carried by each clamp for trimming the end of thefilm section carriedn by the other clamp, leavin overlapping, portions.`

10. n a ihnsplicer, a. double shear block having a fiat top, a 'pairl offilm clamps 1o- Lcated on opposite sides of the block, each comprisinguppe'nand lower swinging'jaws, means for\regist'ering each"iilm -sectionon block and maintainingl it in such register, means 'carried by eacclamp fior trimming the end of the l'm section carried. by theotherclampythreby leaving overlapping portions, and means for unitingsaid overlapping portions on the shearblock.

thereby nl invention I have signed my name this 22nd dav of-becember1917.

- FREDERICK-o. 'GRIswoLD'.

each filin section on soA In testimony,that I claimthe Jforegoing asA

